Fig. 4From: Identification of SARS-CoV-2 variants using viral sequencing for the Centers for Disease Control and Prevention genomic surveillance programAssociation between sequencing-based detection of SARS-CoV-2 virus and baseline RT-PCR Ct Values. Correlation of detecting SARS-CoV-2 viral content in each sample tested with N gene RTPCR Ct values. A lower N gene Ct value was associated with enhanced detection of viral SARS-CoV-2 than those with a higher N gene Ct value as quantitated using RTPCRBack to article page